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MotorFiable

1.5 BlueHDi vs 1.6 HDi: which engine is more reliable?

According to our risk index, the 1.6 HDi carries less risk than the 1.5 BlueHDi: 71/100 (high risk) versus 77/100 (very high risk). The 1.5 BlueHDi has 4 documented serious faults, the main one being «Wear and breakage of the 7 mm chain between the camshafts»; the 1.6 HDi has 2 documented serious faults, the main one being «Turbo failure through lack of lubrication (carbon deposits and union filter)».

Risk index

1.5 BlueHDi

77

Very high risk · 4 serious faults

Risk index

1.6 HDi

71

High risk · 2 serious faults

Lower risk

The index (0–100) weights the severity and frequency of the three most serious documented faults. How it is calculated

41 sourcesHow we work

Is the 1.5 BlueHDi reliable?

The 1.5 BlueHDi has a serious weak point in engines built from October 2017 to January 2023: the 7 mm chain linking the camshafts can stretch and break. Stellantis has recalled them and covers this fault for 10 years or 240,000 km; engines built up to August 2020 can also suffer AdBlue tank failures, with partial compensation from the manufacturer.[1][2][3][4]

See the 5 of the 1.5 BlueHDi faults

Is the 1.6 HDi reliable?

It is an efficient diesel, but its 16-valve versions (2004-2011) have a serious weak point: the turbo is starved of lubrication by carbon deposits from the oil, often made worse by leaks at the injector washers. The 8V engines (from 2010) improved, although you need to watch the 2010-2011 belt and the injectors, and on the BlueHDi the AdBlue tank.[5][6][7][8][9][10][11][12][13]

See the 7 of the 1.6 HDi faults

Side-by-side comparison

Comparison of 1.5 BlueHDi and 1.6 HDi
1.5 BlueHDi1.6 HDi
Technical data
TypeEngineEngine
FuelDieselDiesel
Displacement1,499 cm³1,560 cm³
TimingTiming belt (dry)Timing belt (dry)
Power75–130 hp75–120 hp
Productionsince 2017[14][15][16][17][18][19]2004–2019[8][10][20][21][22][23][24]
Reliability
Risk index (what is it?)77Very high risk71High risk
Documented faults57
Of high or critical severity42
Worst severityCritical severityHigh severity
Main faults
  1. Critical severity: Wear and breakage of the 7 mm chain between the camshafts
  2. Medium severity: AdBlue tank and pump failure
  3. High severity: Seizure of the high-pressure pump and injection system
  1. High severity: Turbo failure through lack of lubrication (carbon deposits and union filter)
  2. High severity: Timing belt failure and premature wear
  3. Medium severity: AdBlue tank and pump fault (1.6 BlueHDi)
Most expensive documented repairup to €1,500AdBlue tank and pump failurePublished figure[4][25][26][27]up to €1,500Turbo failure through lack of lubrication (carbon deposits and union filter)Estimate[5][28][29][30][31][32][33]
Which versions to buy
BuyRecommended versions
  • 1.5 BlueHDi with 8 mm chain (from February 2023)[2][34][35]
  • 1.6 HDi / e-HDi 92/95 8V (DV6D, 2009-2016)[36][37]
With cautionVersions to be cautious about
  • 1.5 BlueHDi 75-130 with 7 mm chain (October 2017 - January 2023)[38][39][40]
  • 1.6 HDi 75/90 16V (DV6BTED4 / DV6ATED4, 2004-2011)[6][7][36]
  • 1.6 HDi 110 16V DPF (DV6TED4, 2004-2011)[6][10][36]
  • 1.6 HDi / e-HDi 112/115 8V (DV6C, 2010-2015)[9][11]
  • 1.6 BlueHDi 75/100/120 (DV6FE / DV6FD / DV6FC, 2013-2019)[12][23][41]
AvoidVersions to avoidNoneNone

Severity of each fault: green, low; amber, medium; red, high; dark red, critical. How we rate them

Cars that each one is fitted to

1.5 BlueHDi

See the 35 models with the 1.5 BlueHDi

1.6 HDi

See the 49 models with the 1.6 HDi

Other comparisons

With the 1.5 BlueHDi

With the 1.6 HDi

Compare other engines

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Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. 1.5 BlueHDi. Stellantis rappelle 930 000 véhicules et étend la couverture à 10 ansL'argus · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in French
  2. Llaman a revisión a miles de Citroën, Opel, Peugeot, DS y Fiat en España con el motor diésel 1.5 BlueHDiMotorpasión · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in Spanish
  3. Réservoir AdBlue Stellantis. Quels changements dans l'indemnisation des clients français ?L'argus · Motoring press · published 21 December 2024 · consulted 26 September 2026 · in French
  4. OCU y BEUC consiguen que Stellantis amplíe la garantía de los depósitos AdBlue defectuososOCU · Consumer association · published 27 December 2024 · consulted 26 September 2026 · in Spanish
  5. Häufige Schäden und die professionelle Reparatur (Turbolader PSA 1,6 HDi)Krafthand · Motoring press · published 6 June 2013 · consulted 26 September 2026 · in German
  6. Boletín de servicio: sustitución del turbo en motores DV6 (versión reducida de la Información de servicio nº 77)Turbotec · Technical documentation · consulted 26 September 2026 · in Spanish
  7. Diesel : la liste des pannes récurrentes des moteurs HDi, dCi, TDI... (1.6 HDi)L'argus · Motoring press · published 28 October 2014 · consulted 26 September 2026 · in French
  8. Fiabilité Citroën Peugeot. Le bloc 1.6 HDi 8 soupapes est-il fiable ?L'argus · Motoring press · published 23 March 2015 · consulted 26 September 2026 · in French
  9. Fiabilité Citroën Peugeot. Le bloc 1.6 HDi 8 soupapes est-il fiable ? (1.6 HDi 112/115)L'argus · Motoring press · published 23 March 2015 · consulted 26 September 2026 · in French
  10. Essai, avis et fiabilité des 1.6 HDI 110 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French
  11. Essai, avis et fiabilité des 1.6 HDI 112 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French
  12. OCU y BEUC consiguen que Stellantis amplíe la garantía de los coches con AdBlueOCU · Consumer association · published 27 December 2024 · consulted 26 September 2026 · in Spanish
  13. El Grupo PSA lanza la gama de motores Blue HDikm77 · Motoring press · published 16 September 2013 · consulted 26 September 2026 · in Spanish
  14. Ford DLD engineWikipedia · Other source · consulted 26 September 2026
  15. Motor DV5Oryx Parts · Technical documentation · published 24 January 2024 · consulted 26 September 2026 · in Spanish
  16. Which Cars Have a Wet Belt? Full UK Engine List (2026)CarOkay · Other source · published 2026 · consulted 26 September 2026
  17. Opel Corsa F: Probleme mit dem Ölbad-Zahnriemen erklärtcarVertical · Other source · published 17 July 2026 · consulted 26 September 2026 · in German
  18. PSA 1.5L BlueHDi: a focus on the DV5 engineSumax · Technical documentation · published July 2025 · consulted 26 September 2026
  19. Timing Belt Kit & Water Pump for Peugeot 1.5 BlueHDi - DV5RLymm Engine Parts · Technical documentation · consulted 26 September 2026
  20. Prueba de consumo (202): Peugeot Partner Outdoor 1.6-BlueHDi 120 CVkm77 · Motoring press · published 24 December 2015 · consulted 26 September 2026 · in Spanish
  21. Motor PSA DVWikipedia (es) · Other source · consulted 26 September 2026 · in Spanish
  22. Peugeot DV6TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 26 September 2026
  23. Fiabilité 1.6 BlueHDIFiches-Auto.fr · Motoring press · published 9 December 2021 · consulted 26 September 2026 · in French
  24. Motor Peugeot DV6FDTED: especificaciones y aplicacionesMyMotorList · Technical documentation · consulted 26 September 2026 · in Spanish
  25. La OCU quiere tomar medidas ante los problemas del sistema de AdBlue de Citroën y Peugeotcoches.com · Motoring press · published 30 May 2023 · consulted 26 September 2026 · in Spanish
  26. Solución fallo AdBlue Peugeot, Citroën y Opel: evita cambiar el depósitoST Automoción · Other source · published 11 December 2025 · consulted 26 September 2026 · in Spanish
  27. Stellantis amplía las compensaciones por los problemas técnicos de sus depósitos AdBlueMinisterio de Derechos Sociales, Consumo y Agenda 2030 · Official body · consulted 26 September 2026 · in Spanish
  28. Turbo intercambio Garrett 753420 motor 1.6HDi 1.6TDCI 1.6DFG Automoción · Technical documentation · consulted 26 September 2026 · in Spanish
  29. Turbo Garrett 753420 (GT1544V) para 1.6 HDI 110 CVAML Turbos · Technical documentation · consulted 26 September 2026 · in Spanish
  30. Tubo de engrase PSA 1.6 HDI 110 CV + filtro (OP10049COMP)Electromotor Lantejuela · Technical documentation · consulted 26 September 2026 · in Spanish
  31. ¿Cuál es el precio de la mano de obra en los talleres de las 10 marcas más vendidas en España?km77 · Motoring press · published 30 December 2024 · consulted 26 September 2026 · in Spanish
  32. La doble tarifa de la mano de obra en los talleres españoles: lo que dice su tablón vs. lo que realmente ingresanInfotaller · Motoring press · published June 2026 · consulted 26 September 2026 · in Spanish
  33. ¿Estás cobrando lo justo en tu taller? Así está la mano de obra por hora en 2025Infotaller · Motoring press · published 9 September 2025 · consulted 26 September 2026 · in Spanish
  34. 1.5 BlueHDi. Stellantis rappelle plusieurs milliers de véhicules pour un problème d'injectionL'argus · Motoring press · published 14 March 2026 · consulted 26 September 2026 · in French
  35. Europa amplía la llamada a revisión por los graves problemas del motor 1.5 BlueHDi de StellantisAutonoción · Motoring press · consulted 26 September 2026 · in Spanish
  36. Fiabilité 1.6 HDIFiches-Auto.fr · Motoring press · published 22 April 2024 · consulted 26 September 2026 · in French
  37. Essai, avis et fiabilité des 1.6 HDI 92 chFiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French
  38. Cobertura especial para los 1.5 BlueHDi del Grupo Stellantiscoches.net · Motoring press · published 3 July 2025 · consulted 26 September 2026 · in Spanish
  39. Casse chaîne 1.5 BlueHDi. Stellantis étend sa prise en charge à 7 ans ou 180 000 kmL'argus · Motoring press · published 15 January 2025 · consulted 26 September 2026 · in French
  40. Fiabilité moteur Stellantis 1.5 BlueHDi. Une nouvelle huile pour éviter la casseL'argus · Motoring press · published 14 January 2024 · consulted 26 September 2026 · in French
  41. Adblue : problèmes en pagaille ?Fiches-Auto.fr · Motoring press · consulted 26 September 2026 · in French